Welder&#39;s tongs



Feb-'17. 1925.

J. s. oEcHsLE WELDER S TONGS Filed Sept. l2. 1923 @www ope/f6@ .229 f @ai Patented Feb. 17, 1925.

UNITED STATES PATENT oEFIcE.

JOSEPH S. OECHSLE, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO METAL- WELD SERVICE CORPORATION, OF PHILADELPHIA, PENNSYLVANIA, A CORPORA- TION F PENNSYLVANIA.

WELDERS TONGS.

, Application led September To all lwhom t may concern:

Be it known that I, JOSEPH S. OEcHsLE. a citizen of the United States, residing at Philadelphia, in the county of Philadelphia 6 and State of Pennsylvania, have invented a new and useful Welders Tongs, of which the following is a specification.

This invention relates to tools used in connection with electric are welding in l0 which one electrode is the material to be cut, welded or repaired. and the other` electrode is the cutting, weldingor repair material; and it has more particular reference to welders tongs and devices having ability to grip different Sizes of electrodes.

More specifically this invention has referenc'e to 'welders tongs having insulated handle portions. and clamping jaws adapted to grip an electrode, and mea-ns'whereby an electric conductor is detachably connected to the handle portions. l

The primaryobject of my invention is to provide a welders tongs of the type referred to having a better means for connectu ing the positive electric wire to theV lower half or handle end of said tongs. In practice I have found that in order to obtain the highest possible amount of current at the extreme upper orjaw end of the tongs it is necessary and essential to have a joint between the electric wire and tongs capable of eiiiciently carrying the heavy current used. As a result, another object of my presentinvention is to give a very high conductivity tothe-tongs in order to prevent heating up of the handle portions.

.With the foregoing and other objects in view which will be hereafter referred to. or become apparent to those conversant with the art. mv invention consists in the novel features of construction. combination and arrangement of parts hereinafter fullv described` and more specifically defined b v the subjoined claims.

Tn the further disclosure of the invention reference will be made to the. accompanving sheet of drawings, constituting apart of this specification. and in which. like characters of reference designate the same or 0 correspondine parts in all the views.

Figure 1 is side elevation of my novel welders tone with the split ends of an electrical conductor connected thereto.

' Figure 2 is a sectional plan taken substan- 12, 1923. Serial No. 682,246.

Referring more particularly to the draw- I ings, my novel welders tongs comprises opposed metal members 5, 6 of high electrical conductivity. one of Said members being provided with integral ears 7, 7 between which is freely iitted an integral lug 8 on the opposed member 6, pivotal connection being established between said parts by a pin 9 passed through registering holes in said ears and lugs. v It will, of course, be clear that the pin 9 in either the ears 7 7 or lug 8, so as to permit free rocking of the members 5, 6' relative to each other. The aforesaid assemblage thus provides handle portions and jaws for the tool or tongs. and I find it preferable to fashion one of the jaws with serratlons or teeth 10 for more efficiently gripping the electrode not shown.

As an insulating and protective agent, I fit each aforesaid members 5, 6 with a semicircular section fiber hand-grip 11. conveniently secured thereto b v countersunk screws 12 in the well known way. In order to provide proper grippage for the tongs I fita strong V-shaped flat Spring' 13 between the handle portions or members 5. 6 the same seating in longitudinal recessions 14 provided for the purpose therein. and as will be clearly7 apparent to those aequaintedwith the art.'

Each of the'aforesaid members 5, 6 is formed at its outer end, remote from the jaw portions proper, with an integral b1- furcated or Slotted extension lug 15, and it is to he particularly noted that said lugs 15 are reversely disposed with respect to each other, so that their slots 16 register in a common plane, or are in direct alignment, as will be best` Seen from Figure 4. wherein I have indicated a common center line 17 to specially emphasize this feature. the purpose and object whereof will be hereafter more fully Set forth. The bifurcated or Slotted extension lugs 15 form female high electrical conductive joints for the teris made a friction fit slotted lugs 15,

j dles or gr1ps 11, 11

. possible relative movement, whereby minal or male ends 18 of the current conductor 19, it being of course understood that said current conductor is split to provide portions 20, 2() which are appropriately secured into the cupped. parts 21 of said terminal ends 18. These terminal ends 18 are made. a friction lit into the bifurcated or nected thereto by bolts 22 in the well known way. It is here worthy of particular note that by forming .the parts 15, 18 as just described, although the bolts 22 may work loose, the eiiiciency of the tool will not diminish, neither will there be any drop in voltage, due to the fact that the bearing surface or connection to the tool is made a friction tit on'both sides. This feature I deem of prime importance, as it effectively ensures the conduction of full current at all times even though the aforesaid bolts 22 should become loosened from some unforeseen or accidental cause.

Furthermore, it is also to be remarked that the slotted lugs or` extensions'l are disposed at right angles to the electrode gripping faces or jaws, so that as the hanare closed and opened the conductor connections 20, 20 will be attache'd. at an angle that ensures the least breakage strains at their point of connection to the parts 31, is reduced to a minimum.

From the foregoing description and an examination of the drawings. it will be perfectly art, that by my invention I have greatly increased the -efficiency of welders tongs in a simple, economical and satisfactory vmanner. Incidentally, the countersinks for the heads of the screws 12 are filled in with an .appropriate insulation wherebythe operator isprotected from any danger of'shock. Still further, I desire to state in conclusion, that I lay no claim whatsoever broadly to the of a new form of welders tongs.

production that I have by my novel metho'd per se, but

and they are detachably con-l 1 ininals adapted clear to anyone acquainted with the of attaching the electrical conductor, greatly increased the eiciency and utility of such implements. Furthermore, by making the metal parts of material having a maximum degree of electrical conductivity, and connecting the conductor to the tool in the manner, and by the means shown and described, I have madea meritorious advance in the art.

Having described my invention what I claim as new and desire to secure by Letters Patent,'is:

1. In av welders tongs comprising body members of high electrical conductivity the combination of means for detach-ably connecting an electric conductor thereto, said means embracing bifurcated extensionlugs integral with the to receive the split end of the electrical conductor and having flattened body members, cupped ter' po-rtions frictionally ittinn into the aforei' said bifurcated extension llugs, said extension lugs being reversely vdisposed relative to each other at right angles to the plane of the tongs'jaws with the cuppe'd conductor receiving parts in a commonoperative plane, l

and means detachably connecting the lugs and flattened terminal portions together.

2. In a welders tongs comprising opposed and ivotally connected members `of high electrical conductivity, hand ips of fiber secured to said members, an a V flat spring seating between the aforesaid members to ensure proper grippage for the jaws, the combination of bifurcated extension' lugs integral with the pivoted Vmembers remote from the gripping jaws, said lugs being disposed in planes at right angles to said jaws, electrical conductor terminals having flattened portions frictionally fitting into the bifurcated lugs, and means eta-chably connecting the aforesaid lugs and j flattened terminal portions together.

In `rtestimony whereof, I affix my signature this 4th day of ,Seitember, 1923. j JO EPH S. CECI-ISLE.

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